check primal objective, add zero constraint corresponding to gt
FIX slight change in constraints broke test
FIX horrible bug in constraint caching, adjust tests
make grid_crf example way faster with less cores
ENH add alternative base ssvm to latent svm example
FIX hacky work around for score function of latent ssvm
EXAMPLE multi class svm: faster one slack version
EXAMPLE Latent SVM use digits dataset
FIX max vs maximum, add LatentSubgradientSSVM to init